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United States-Chile Binational Exchange for Volcanic Risk Reduction, 2015—Activities and Benefits

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United States-Chile Binational Exchange for Volcanic Risk Reduction, 2015—Activities and Benefits Prepared in cooperation with Red Nacional de Vigilancia Volcánica del Servicio Nacional de Geología y Minería de Chile United States-Chile Binational Exchange for Volcanic Risk Reduction, 2015—Activities and Benefits Circular 1432 U.S. Department of the Interior U.S. Geological Survey Cover. Chilean and American delegates on caldera rim of Chaitén Volcano, Chile, March 28, 2015. The steaming lava dome is in the background. (Photograph by Christopher Wills, California Geological Survey.) United States-Chile Binational Exchange for Volcanic Risk Reduction, 2015— Activities and Benefits By Thomas C. Pierson, Margaret T. Mangan, Luis E. Lara Pulgar, and Álvaro Amigo Ramos Prepared in cooperation with Red Nacional de Vigilancia Volcánica del Servicio Nacional de Geología y Minería de Chile Circular 1432 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior RYAN K. ZINKE, Secretary U.S. Geological Survey William H. Werkheiser, Acting Director U.S. Geological Survey, Reston, Virginia: 2017 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment—visit https://www.usgs.gov/ or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, visit https://store.usgs.gov. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner. Suggested citation: Pierson, T.C., Mangan, M.T., Lara Pulgar, L.E., Amigo Ramos, Álvaro, 2017, United States-Chile binational exchange for volcanic risk reduction, 2015—Activities and benefits: U.S. Geological Survey Circular 1432, 43 p., https://doi.org/10.3133/cir1432. Library of Congress Cataloging-in-Publication Data Names: Pierson, Thomas C., author. | Red Nacional de Vigilancia Volcâanica (Chile) | Geological Survey (U.S.), issuing body. Title: United States-Chile Binational Exchange for Volcanic Risk Reduction, 2015 : activities and benefit / by Thomas C. Pierson [and three others]. Other titles: U.S. Geological Survey circular ; 1432. 1067-084X Description: Reston, Virginia : U.S. Geological Survey, 2017. | Series: Circular, ISSN 1067-084X ; 1432 | “Prepared in cooperation with Red Nacional de Vigilancia Volcâanica del Servicio Nacional de Geologâia y Minerâia de Chile.” | Includes bibliographical references. Identifiers: LCCN 2017033949| ISBN 9781411341555 | ISBN 1411341554 Subjects: LCSH: Binational Exchange for Volcanic Risk Reduction (Program) | Volcanic hazard analysis--United States. | Volcanic hazard analysis--Chile. Classification: LCC QE527.6 .P54 2017 | DDC 363.34/95--dc23 | SUDOC I 19.4/2:1432 LC record available at https://lccn.loc.gov/2017033949 ISSN 1067-084X (print) ISSN 2330-5703 (online) ISBN 978-1-4113-4155-5 iii United States-Chile Binational Exchange Delegates U.S. delegates Chilean delegates Mona Bontty, southern regional administrator Álvaro Amigo Ramos, volcanologist California Governor’s Office of Emergency Red Nacional de Vigilancia Volcánica, Servicio Services Nacional de Geología y Minería (Exchange co-coordinator—Chile) Jeffrey Hinson, fire management officer Mariela Chavarriga, Chilean national working as a Inyo National Forest, Mammoth Ranger District, risk-management specialist with U.S. Forest Service Office of U.S. Foreign Disaster Assistance, U.S. Agency for International Development Kristin Kirschner, park ranger Karem Cofré Orellana, chief of social services Yosemite National Park, National Park Service section Gobernación de Palena Helen Lopez, assistant director/international Gonzalo Hermosilla Pineda, liaison geologist/scientist-in-charge Financial Accountability and Compliance Office, Observatorio Volcanológico de Coyhaique, Red California Governor’s Office of Emergency Nacional de Vigilancia Volcánica, Servicio Services Nacional de Geología y Minería Margaret Mangan, volcanologist/scientist-in- Luis Lara Pulgar, volcanologist and chief charge Red Nacional de Vigilancia Volcánica, Servicio U.S. Geological Survey California Volcano Nacional de Geología y Minería de Chile Observatory (Exchange coordinator—Chile) (Exchange coordinator—U.S.A.) Ronald Martin, ranger operations supervisor Felipe Plaza Chacón, geographer Lassen Volcanic National Park, National Park Centro de Alerta Temprana, Oficina Nacional de Service Emergencia Carolyn Napper, district ranger Pedro Vásquez Celedón, mayor Shasta McCloud Management Unit, Municipalidad de Chaitén Shasta-Trinity National Forest, U.S. Forest Service Thomas Pierson, research hydrologist Alejandro Vergés Castillo, regional director U.S. Geological Survey Cascades Volcano Región de Los Lagos, Oficina Nacional de Observatory Emergencia (Exchange co-coordinator—U.S.A.) Stuart Wilkinson, volcano monitoring network Carlos Zambrano Fernández, general manager specialist Parque Pumalín U.S. Geological Survey California Volcano Observatory Christopher Wills, engineering geologist California Geological Survey Nathan Wood, research geographer U.S. Geological Survey Western Geographic Science Center iv Contents United States-Chile Binational Exchange Delegates .............................................................................iii Acronyms and Abbreviations......................................................................................................................vi Introduction.....................................................................................................................................................1 Past Volcanic Activity and Crisis-Response Challenges at Chaitén Volcano and Long Valley Volcanic Region ..........................................................................................................3 Chaitén Volcano ....................................................................................................................................3 Long Valley Volcanic Region ...............................................................................................................5 Exchange Delegates......................................................................................................................................6 Exchange Activities in Chile .........................................................................................................................6 Exchange Activities in the United States ...................................................................................................9 Benefits for Exchange Participants ..........................................................................................................12 Pretrip Questionnaire Responses ....................................................................................................12 Summary of U.S. Delegate Perspectives ...............................................................................12 Summary of Chilean Delegate Perspectives .........................................................................12 Posttrip Questionnaire Responses ..................................................................................................13 U.S. Delegate Perspectives .....................................................................................................13 Chilean Delegate Perspectives ......................................................................................13 Summary........................................................................................................................................................14 References Cited..........................................................................................................................................14 Appendix 1. Pretrip Questionnaires ..........................................................................................................16 U.S. Delegate Responses to Chile Pretrip Questionnaire ............................................................16 Chilean Delegate Responses to California Pretrip Questionnaire ..............................................21 Appendix 2. Posttrip Questionnaires ........................................................................................................28 U.S. Delegate Responses to Chile Posttrip Questionnaire ..........................................................28 Chilean Delegate Responses to California Posttrip Questionnaire ............................................35 Figures 1. Maps showing locations of the Long Valley volcanic region in California, U.S.A., and Chaitén Volcano region in Chile .........................................................2 2. Photograph of an explosive eruptive pulse from Chaitén Volcano, Chile, viewed from town of Chaitén during the first week of its eruption in May 2008 ....................................................................................................................3 3. Photograph taken June 6, 2008, showing damage to the town of Chaitén, Chile, caused by excessive sedimentation and flooding from the Chaitén River .................................................................................................................4 v 4. Photograph showing Long Valley Caldera, California, viewed from summit of Mammoth Mountain, a lava-dome complex built on the caldera rim .....................................................................................................................................5
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